how to go into tst mode??? definitions.. play button  >| Home Button   house Corner button  square with box in corner sequence in service manual?   1..Turn on the main body emergency switch. 2. Press the “play” button to turn it on. 3. Hold down the “cornr” button for 3 seconds. 4. buttons are pressed in the order of  Play -> Home->play->corner 4a  Pictures show home->play->corner ???   WTF 5 test mode is entered Problem 1 is ,there is no confirmation codes after the sequences are entered, ie after step 2 there is no confirmation  beep or display  etc Problem 2 should th unit be on a surface or floating ,in the air My findings.  After step 2, how long or immediately should I do step 3?,  no instructions in service manual After step 2, unit goes into  5,4,3,2,1,0 and starts to vacuum,  no results when I hold home for 3 seconds? I don’t know if step 3 was successful, so I don’t know if I’m ready for step 4? I’ve tried all combos with no success Does anybody know whow to get this beast into test mode??